Thumb accessible registers

Thumb branch instruction binary encodings 15 12 11 8 7 1 1 0 1 cond 8-bit offset (1) B<cond> <label> 15 11 10 1 1 1 0 0 11-bit offset (2) B <label> 15 12 11 10 1 1 1 1 H 11-bit offset (3) BL <label> 15 11 10 1 1 1 1 0 1 10-bit offset (3a) BLX <label> 15 8 7 6 5 3 2 0 1 0 0 0 1 1 1 L H Rm 0 0 0 (4) B{L}X Rm

Thumb software interrupt binary encoding

Thumb data processing instruction binary encodings

Thumb single register data transfer binary encodings

Thumb multiple register data transfer binary encodings

Thumb breakpoint binary encoding

The Thumb instruction decompressor organization

Thumb to ARM instruction mapping